Heater attachment.



PATENTED SEPT. 22, 1903. y

E. y BURGER. HEATER ATTAGEMENT.

VPPLIOATION FILED FEB. 13, 1903.

H0 NOBEL.

No. 739,384. y

UNITED STATES 'atented September 22, 1903.

PATENT OFFICE.

EDWARD BURGER, OF KOKOMO, INDIANA.

HEATER ATTACHMENT.

SPECIFICATION forming` part of Letters VTatent No. 739,384, dated September 22, 1903. Application iiled February 13,1933. Serial No. 143,242. KNO model.)

To a/ZZ whom t mag/concern:

Be it known that I, EDWARD B URGER, a citizen of the United States, residing at Kokomo, in the county of Howard and State of Indiana, have invented a new and useful Heater Attachment, of which the following is a specilication. Y l

My invention relates to attachments for stoves and similar apparatus, and has for its object the eiecting of more perfect combustion therein.

Inthe accompanying drawings, Figure 1 is a vertical sectional view of a stove having my invention appliedthereto. Fig. 2 is a perspective view of a device, showing the einbodiment of my invention in its preferred form.

Similar characters indicate like parts throughout both igures of the drawings.

Some form of heating apparatus, here shown as the cylinder stove, is designated by the letter S, provided with the usual funnel 10,*leading from the top thereof, and with a lower draft 11 and funnel-damper 12. Within the stove, preferably ttingl closely against the casing, is the air-heating portion H of my improved attachment. This may consist of an upper section 13, which may be tubular in cross-section, formed or bent to-a contour to fit the particular stoves in which it is to be used. Itis shown as non-continuous or with a part removed to allow for the stove-door, but with the ends closed. Nipples 14, here shown as three in number, depend from this section, and over each of these nipples may be slipped a vertical pipe 15, fitting at their lower ends over nipples 16, projecting upward from a lower section 17. This section 17 ispreferably circular in general contour of the vopen angular cross-section illustrated and the frictional contact of the outer edges of the section 17 with the interior ofthe stove and by the outward spring of the open or particircular section 13.

As an additional support the section 13 is shown as seated in a groove inthe stove-casing and the section 17 with its upper edge resting upon a shoulder projecting therefrom.

From the section 13, preferably at a point beneath the funnel, extends a nipple 19, over which is slipped an induction-pipe 20, passing up into the funnel and being provided with an elbow at 21 to enable it to pass thro'ugh the side of the funnel to give -an opening 22 into the exterior air. I'n-this pipe 20 is shown a damper 23 to govern the quantity of air admitted.

To assemble the apparatus, either the lower or upperA section is first put in place through the top or bottom of the casing, respectively, as is most convenient, the pipes 15 are placed over the nipples, and the companion section is inserted and their nipples brought into coaction with the pipes. Then the pipe V2O is put in position and the funnel with the elbow adjusted.

' When combustion is taking place in the stove, the upward draft therethrough, controlled in the usual manner by the stove-dampers, draws fresh air through the opening 22, from which it passes through the pipe 20 into the section 13, down the pipes 15, and into the section 17, becoming progressively more and more heated luntil it is discharged at a 1. In a device of the class described, the

combination with a cylindrical heater-casing having an ash-pit, a grate and an annular offset, of an air-chamber, triangular in crosssection, the outer wall of said chamber being formed by the stove-casing and the inner and lower walls by inclined and horizontal members, the latter being supported upon the grate and the former being provided with a supporting-liange resting upon the shoulder or offset.

roo Y 2. In a device of the class described, the combination with a cylindrical stove-casing having an ash-pit, a grate, and an annular shoulder' or offset, of an annular downwardly- 5 converging member supported upon the shoulder or offset, an annularhorizontally-disposed memberconnected with the lower edge of the downwardly-converging member and coperating therewith and with the stove-casing to Io form an annular air-heating chamber, nipples extending upwardly from the downwardly-V converging wall of said chamber, and connecting means for the conveyance of air downwardly through the stove-casing to said an- 15 nnlar airchanrber, the bottom member of the latter being provided with openings for the passage of the heated air into the ash-pit and thence upwardly from the grate to support combustion.

3. The combination with a casing, of a bent 2o non-continuous air-heating section having a space between its ends and possessing some spring lo engage the casing.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in 25 the presence of two witnesses.

his EDWARD BURGER. mark Witnesses:

W. G. WEB, IV. C. MCCUNE. 

